Uhhhh, you completely missed my point. The Potentium heresy is heresy for a reason. Channeling the Dark Side ultimately corrupts you. It's incompatible with the Light Side. Palpatine used the Potentium heresy to attempt to lure Anakin in Ep III (the scene where Anakin tells Palpatine that Obi-Wan's engaged Grievous). Vergere, a fallen Jedi who came under instruction of Palpatine, used the Potentium heresy to lure Jacen, who ultimately fell to the Dark Side, believing he could master both sides. Yoda hunted down Potentium heretics at some point because of the danger of the Potentium theory in luring people to the Dark Side. Looking further back, there were the examples of Ulic Qel-Droma, Kreia, and even Revan.

Darth Traya is evidence that contradicts what you said. Not to mention there where other Potentium members that never became sith,

Heresy is a good thing, "If you are to truly understand, then you will need the contrast, not adherence to a single ideal."

Sure Palpatine uses this, but he used this philosophy to try to turn anakin for evil intentions. Where as the philosophy itself isn't evil.

face it jedi are flawed.

Jedi Masters refused to believe in the Potentium view because it would mean the Jedi weren't needed to fight evil, for evil would not exist. the council believed that it was the duty of the Jedi to use the Force to protect others, not study its absolute limits.

Lets not forget Darth Revan, Sure he was a Sith and used evil methods but his intentions where good, this supported the Potentium philosophy.